View 5 Photos View 0 Videos Cummins 5.9L Engine Control Module (ECM) for a Freightliner MT55 Chassis $599.98 USD (Used) Cummins 5.9L, ENGINE ECM- Part Number: P3944124, Serial Number: 0C03011498, Engine Information- Displacement: 5.9L, 2 Rectangular Plug with 50 Pins each!! Reference images for... ConditionUsedFits To Make(s)FreightlinerFits To Model(s)MT55 ChassisPart NumberP3944124Stock NumberP-80829 MLS Number12884444CategoryEngine Control Modules (ECM) Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Cummins 5.9L Engine Control Module (ECM) $599.98 USD (Core) 2018 Cummins ISB, ENGINE ECM- Part Number: 3990517, SerialNumber: 0A05021943, 2 Rectangular Plug with 50 Pins each!! Reference images for condition. For more information about this o,... ConditionUsedPart Number3990517Stock NumberP-113717 MLS Number13972277CategoryEngine Control Modules (ECM) Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2000 Cummins 5.9L Engine Control Module (ECM) $250 USD Cummins 5.9 for parts Manufactured 11/29/2000 190 HP Listing is for the:: ECM $250; We also have the :Cylinder Head $400; High Pressure Pump $400; Block $600; Crank $600; Injectors $50;... ConditionUsedWill Fit Year(s)2000Stock Number202138 MLS Number10481363CategoryEngine Control Modules (ECM) Last Updated5/14/2026 LocationFelda, FL, US Sold ByDelauto Used Truck Parts (844) 925-___ SHOWNUMBERCall Seller Email Seller Save More Info